Hello, everyone! My name is Kate and I'm from Russian Federation, that's why sorry for my english I need your help, for my work at university I need answers of native speakers, it's very important for my research, please try to help me, I hope it will not be very difficult for you
Here is my Questionnaire, you are welcome!

Read the following idioms and tick those which are typically English and have no equivalents in other languages.
As the crow flies – directly or in a straight line
Dutch treat – share the cost, when each person pays for himself or herself
Fish out of water – a person who is uncomfortable in a situation or doesn’t belong in a particular environment
Look like a million dollars – look or feel extremely attractive
Go bananas – go crazy
Have a frog in smb’s throat – be unable to speak clearly until you cough
Bring home the bacon – earn money to live on
A penny pincher – a person who doesn’t like to spend money
Not worth a red cent - worthless
Hem and haw - hesitate to say smth. directly

If a non-native speaker uses the following idioms in his / her speech it sounds:
Natural
Admiring
Strange
Choose one of these reactions for each idiom.

As the crow flies – directly or in a straight line
Dutch treat – share the cost, when each person pays for himself or herself
Fish out of water – a person who is uncomfortable in a situation or doesn’t belong in a particular environment
Look like a million dollars – look or feel extremely attractive
Go bananas – go crazy
Have a frog in smb’s throat – be unable to speak clearly until you cough
Bring home the bacon – earn money to live on
A penny pincher – a person who doesn’t like to spend money
Not worth a red cent - worthless
Hem and haw - hesitate to say smth. directly

Is this ok? I'm quite young so I might not know some of them completely.

As the crow flies – directly or in a straight line - yes
Dutch treat – share the cost, when each person pays for himself or herself - yes
Fish out of water – a person who is uncomfortable in a situation or doesn’t belong in a particular environment - yes
Look like a million dollars – look or feel extremely attractive - yes
Go bananas – go crazy - yes
Have a frog in smb’s throat – be unable to speak clearly until you cough - yes
Bring home the bacon – earn money to live on - yes
A penny pincher – a person who doesn’t like to spend money - yes
Not worth a red cent - worthless - yes
Hem and haw - hesitate to say smth. directly - yes

If a non-native speaker uses the following idioms in his / her speech it sounds:
Natural
Admiring
Strange
Choose one of these reactions for each idiom.

As the crow flies – directly or in a straight line - natural
Dutch treat – share the cost, when each person pays for himself or herself - strange
Fish out of water – a person who is uncomfortable in a situation or doesn’t belong in a particular environment - natural
Look like a million dollars – look or feel extremely attractive - admiring
Go bananas – go crazy - natural
Have a frog in smb’s throat – be unable to speak clearly until you cough - strange
Bring home the bacon – earn money to live on - strange
A penny pincher – a person who doesn’t like to spend money - strange
Not worth a red cent - worthless - strange
Hem and haw - hesitate to say smth. directly - strange